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Highly conductive carbon nanotube/polymer nanocomposites achievable?
journal contribution
posted on 2009-11-13, 15:57 authored by Xinxin Sun, Mo SongCarbon nanotubes (NT) have attracted growing interest in recent years as a
conducting filler in the development of conductive polymer composites. However,
most of experimental results show that the conductivity of NT/polymer composites is
significantly lower than expected. Can NTs be an effective conductive filler for
improving the electrical conductivity of polymers? In order to answer this question, a
continuum model was constructed by introducing effective tunneling conduction in a
non-universal network for prediction of electrical conductivity of NT/polymer
composites. Based on this model, the effect of the microstructure of NT/polymer
composites on conductivity was assessed particularly for NT/polyethylene,
NT/polyimide and NT/poly(vinyl alcohol) composites. NT contact resistance and
tunneling resistance have significant influences on the conductivity. The effects of the
potential barrier of polymer and the tortousity of single-walled NTs on the
conductivity were also analyzed. NTs cannot be considered as a valuable conductive
filler for the development of highly conductive polymer composites unless the contact
and tunneling resistances are reduced significantly.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Citation
SUN, X. and SONG, M., 2009. Highly conductive carbon nanotube/polymer nanocomposites achievable? Macromolecular Theory and Simulations, 18 (3), pp. 155-161.Publisher
© WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimVersion
- NA (Not Applicable or Unknown)
Publication date
2009Notes
This article is closed access. It was published in the journal, Macromolecular Theory and Simulations [© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim] and is available at: http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1521-3919ISSN
1022-1344;1521-3919Publisher version
Language
- en